Finding the Fourth Proportional to 427,203.99, 640,849.86 and 161,188.38
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Solution
The fourth proportional to 427,203.99, 640,849.86 and 161,188.38 is: 241,799.12
Step by Step Solution
- Step 1: Write the proportion equation
427,203.99 : 640,849.86 = 161,188.38 : x - Step 2: Convert to fraction form
427,203.99/640,849.86 = 161,188.38/x - Step 3: Cross multiply
427,203.99x = 640,849.86 × 161,188.38 - Step 4: Simplify right side
427,203.99x = 103,297,550,756.63 - Step 5: Solve for x
x = 103,297,550,756.63/427,203.99 - Step 6: Final answer
x = 241,799.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.